Mounting for typewriters and the like



Maren 29, 1927, I 1,622,713

W. F. GILLESPIE MOUNTING FOR TYPEWRITERS AND THE LIKE Filed Jan. 24',1925 INVENTOR wwlw 3'. QM

ATTORNEY Patented Mar. 29', 1927. a I I UNITEDI-STATES 1,622,713 PATENTOFFICE.

WILLLAI I. GILLESPIE, OF STAMFORD, CONNECTICUT, ASSIGNOB TO STAMFORDRUBBER SUPPLY COMPANY, A CORPORATION OF CONNECTICUT.

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Application flled' January I This invention relates to mountings fortypewriters and the like. Oneof the objects thereof is-to provide adevice of the above nature practical and efiicient and capable ofmeeting the requirements of use in a highly satisfactory manner. Anotherobjectis to provide a device of the above nature adapted materially tolessen the noise occasioned by'the operation of a typewriter or similarmachine. Another object is to provide such a device whichis simple'andinexpensive and thoroughly practical. Another objectis to provide adevice of the above nature readily adaptable to varying conditions ofuse. Other objects will be in part obvious or in'partpointed outhereinafter. I

The invention accordingly consists in the features o'fconstruction,combinations, of

'be exemplified in the structure to be hereinafter described and thescopeof the application of wnich will'be indicated in the followingclaims.

shown one or more various possible embodi ments of the several featuresof this invention,

Figure 1 is a vertical section of a supporting device showing the devicein use;

'* Figure 2 is a vertical section showing the device not u n' use; I 1Figure 3 is a top plan view of Fig. 2;-

Figure 4is a vertical section similar to use, and 1 a Figure 5 isabottom plan view of the device shown in Fig. 4. I v I Similar referencecharacters referto similar parts throughout the several views ofthedrawing. v

Referring now to 'Figure 1 of the drawing in detail, there is shown acasing 10 preferabl of sheet metal and provided with a remova le cover11. The cover 11 isprovided with a circular opening 12 projectingthrough which tothe interior of the casing is show the leg or foot- 13of a typewriter or sim lar machine 14. The leg or foot 13 is of theusual type found on typewriters,

being of short length, cylindrical in shape andgenerally made of rubber.Inside t e casing 1f) the leg 13 rests upon a member 15 which preferablytakes the form of a thin 55 disk'loosely fitting the interior walls ofthe casing. This disk 15 is preferably made of elements, andarrangements of parts as will In the accompanying drawing is which is'Fig., 1 showing a slightly-modified form in extent, .and the air 24,1925. Serial No. 4,447.

some substantially rigid and non-yielding material such, for example, asa stiff fiber Within the casing'lO, beneath the member 15, is a member16 which is of a yield ing and highly resilient nature. The material ofwhich this member 16 is preferably made is a composition havingqualities of resiliency somewhat similar to those of rubber and known asmolded rubber factice.

This material, as is shown in the drawing, is-

of a spongy character, being provided with a multitude of individual aircells of substantial size. It is highlv resilient and yielding. Innormal distended position the member 16 substantially fills the spacewithin the casing 10, holding the member 14 snugly up against the,-inner surface of the cover 11, as shown in Figure 2.

I The area of thetop surface of the member 16 ispreferablyzsubstantially greater than the area of the bottom surface ofthe leg 13. .If the leg 13 were permitted to rest directly. upon thesurfaoe of the resilient member 16, the weight of the typewriter wouldbe concentrated at the center of the member, compressing the samelocally to such an extent as to collapse the air cells thereof anddecrease its effectiveness for the purpose which will be later pointedout. The substantially non-yielding .member 15 distributes overtheentire area'ofthemem ber 16, the weight imposed by the leg 13,

thus increasing the area of the member 16 against which the tveight ofthe typewriter is exerted. The result is that the member" 16 is notlocally compressed to so great an cells thereof ,are not collapsed.Moreover,.this even distribution of pressure lengthens the life of themember 16. As is well known, theobjectionable noise occasioned by theoperation of a typewriter v or similar machine is caused"largely by thevibrations which are transmitted through the legs of the typewriter tothe desk or table upon which it is sup orted.'- The rela-' tively largearea of the esk or table acts as a sounding board, amplifying the soundwaves caus'edbythe vibration of the typewriter. The member 16'is of suchnature that (it offers an extremely high resistance to the rst place,the'high resiliency of the material of which the member 16 is composedhasfthe effect of greatly'lesz'ening or absorbing the vibrations whichare transmitted to of very it from the leg 13.' The inherent resiliencyof the rubber-'factice of which the member 16 is composed, is increasedby the pressure ofthe air cells. In the second place, the cellularStructure of the member decreases its density to a great extent, and amember low dens1ty is a very poor conductor of sound vibrations. member.16, impedes the transmission of sound vibrations therethrough to suchan extent that substantially no vibrations reach the bottom of themember to be transmitted to the desk or table upon which thetvoewriteris supported. The multitude of air cells effect the absorptionof the sound vibrations, preventing their passage through the member.

The casing 10 holds the member 16 against lateral distortion and withthe cover 11 and the member 15 protects the member 16 from air and dirtwhile in use. The cover 11 at the opening 12fits closely about the leg13 so that little or no dirt or other material can enter at such point.

As has been mentioned above, and as is .shown in Figure 2,. the m'ember16 when the device is not in use holds the disk 15 snugly up against theinner surface of the cbver 11. Thus when the device is not n use theopenin 12 is tightly closed by the member 15. e parts thus form a tightinclosure for the member 16, protecting the latter from air andmoisture, and the de- ,tacles. The casing 10 vices may thus be shippedwithout need of further packin A lar e numier of typewriters in serviceare mounted in a well-known type of folding desk in which they aresecured upon a swinging support and may be swung thereon into aconcealed position when not in use. In such desks, the legs of thetypewriters usually rest in cup-shaped receptacles of the type shown at17 and 18 in Figure 4. Four of these receptacles are provided, one foreach leg of the typewriter, and the typewriter is clamped downwardlythereinto. In the drawing, the two recep tacles shown are viewed fromthe side, one being adapted to receive a forward leg and the other a manleg of the typewriter. The forward wall 17' of. the forward receptacle17 is lower than the rear wall 17 thereof, and the rear wall 18 of therear receptacle 18 is lower than the forward wall 18 thereof, thetopsurfaces 17 and 18 of the receptacles sloping as shown. The purposeof this construction is to facilitate the placing'of the typewriter inposition, it being possible to first osition the rear legs in thereceptacles and t en swing the forward legs into their receptacles? 7Figures 4 and 5 there is shown a modi- -fied form of the mountingofrthis invention adapted for coacting with these recepcontaining thepor- The low density of the ous resilient member 16 and the member 15 isprovided in its lower surface with a projection 10 adapted to fit intothe receptacles 17 or 18. This projection 10 is preferably provided witha sloping shoulder 10 which mates with and rests upon the slopingsurface of the receptacle. This sloping shoulder is preferably so formedthat it rests at its lowest portionupon the lowest portion 17 of thewall of the receptacle, and thence sloping upwardly rests upon thesloping side walls of the receptacle, merging into the main upperportion along the line 10 (Fig. 5), the lower surface 10 of the mainportion of the casing 10 thus resting upon the highest portion 18 of thewall of the receptacle. The member 16 is preferably formed at its lowerportion to extend downwardly into and substantially conform to the shapeof the projection l0 means of this construction, the typewriter mountingof this invention is made to coact with the general types of foldingdesks and at the same time the full advanta es of the member 16 andother parts descri ed above are realized.

It will thus be seen that there is herein provided a construction whichembodies the features of this invention and attains the objects thereofand that the same is well adapted to meet the requirements of practicause. As many possible embodiments may be made of the above invention,and as many changes might be made in the embodiment above set forth, itis to be understood that all matter hereinbefore set forth is to beinterpreted as illustrative and not in a limiting sense.

I claim as my invention:

1. A device for supporting a typewriter or the like comprising, incombination, a substantiall cup-shaped casing member, a pad of resilientand porous material substantially filling said casing member, a tightlyfitting cover for said casing member, and a solid and substantially riid plate member resting freely within sai caslng between the uppersurface of said pad and the inner surface of said cover, said coverhaving an opening of a size to permit passa e of the typewriter leg, thetypewriter leg fiein adapted to enter said opening and rest freely uponthe surface of'said plate, said plate being of greater area than saidopenin and closing said opening under the upwar urge said resilient padso that said pad is completely enclosed when the device is not in use.

2. A device for supporting a typewriter or the like comprising, incombination, a substantially cup-shaped casing member having a mainupper portion and a lower portion of reduced size shaped to enter and ofthe casing. By'

portion of the casing 10 at its rest in the cup-shaped leg-receivingmember of a folding typewriter desk, a pad of resilient and porousmaterial substantiall fill- 1 opening of ing said casing member, atightl cover for said and substantially rigid plate member rastingfreely within said casing between the upper surface of said pad and theinner surface of said cover, sald cover havin an a size to permitpassage of the typewr ter leg, the

tting casing member, an a soli typewriter leg being adapted to entersaid opening and rest free y upon the surface 0 said plate, said platebemg of greater area than said-openmg and closing said 0 ning under theup- 15 ward urge ofsaid 'resi 'ent pad so that said pad is completelyenclosed when the device is not in use.

In testimony whereof, I have signed my name to this specification thisthirteenth day 20 of January 1925. v

WILLIAMF. GILLESPIE. v

